X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=HLeBLclv c=1 sm=1 tr=0 a=P+YvP7MoOanUyctSstwofA==:117 a=x7bEGLp0ZPQA:10 a=xXDCcK6TKBsA:10 a=7mUfYlMuFuIA:10 a=vggBfdFIAAAA:8 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=7g1VtSJxAAAA:8 a=iCYDBB8an8jK7LM4vswA:9 a=fYa7fuGDsp12aqvA:21 a=wA5l_5G2hoCAYqOW:21 a=QEXdDO2ut3YA:10 a=kLKIWzo3O8neO62i95MA:9 a=H7cAn37oRlAra1aU:21 a=a35qRFBXAUGtneFH:21 a=OttGJNeZEyNcQsjl:21 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=Urk15JJjZg1Xo0ryW_k8:22 a=grOzbf7U_OpcSX4AJOnl:22 From: "Todd Bartrim bartrim@gmail.com" Received: from mail-wm0-f43.google.com ([74.125.82.43] verified) by logan.com (CommuniGate Pro SMTP 6.2.5) with ESMTPS id 11257156 for flyrotary@lancaironline.net; Wed, 13 Jun 2018 21:30:17 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.125.82.43; envelope-from=bartrim@gmail.com Received: by mail-wm0-f43.google.com with SMTP id p11-v6so8737689wmc.4 for ; Wed, 13 Jun 2018 18:30:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=1YxbviayIsk4XN1M49OgLfwkG1TuETop/A8kMCVMxVw=; b=CAkGNdgywMLJUoQJhvdYqZha3NMFsPL597hMc3CARNjyx53DcLbr58F/JRj5o8uplA X3tSF3bJDRMgG5V9kxI1PX8gpc+nfGeoQ6xEvW9bSUWFuJnr4d/ivuOjZJfU5NggLhq6 TKiDixNLir4MrLF+zbtbCZNjBkmTGQWy1qGGtp25YMIeu+97P1Sgrsu7UmFUIjY1ShCf D1FLdx/xjqwNgo+nItrD6bkrV/EDmwVHcoKm1OCcG/ppU2O/Sqj4JORWdEfMpdFky2XZ uZlkiar3xc+Pj/2VymFKtajx5Ve4xFDWr9sT1FGMsICCa0u70FkNOpLjsWZ3CxXOD9z4 DfMg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=1YxbviayIsk4XN1M49OgLfwkG1TuETop/A8kMCVMxVw=; b=YPhhQjINwAhY/f8z+9FdMhhSmwtrwT7hNtTWMZSBoXuPgjz1Gc/DLIk2jArnPRXpqj yAqbbveJXcLPSUV3PO/Fd4M6sDpiCCLxS0CGB6G92Z4Y8T9LxofXTQeIBkaq+QT5hu2h 1imdimaBqbjaHyzgk5atkqCBWSnqhTutU1EzRkRIGM5GS9OgUcmALFU50bjZPimZy8pi SRI4bue2Plmlgo1vlVCxp2vd1gAL/p0mbFTXZLBjtGydrgfWL6afPFbRWdNTFkeI5ipo InxQBuiR4mE1lEG5horqmU948+GBAyvLrJJ1B6uh/TQE9AHGpFl50gdlWYuLexPUsguX ySdw== X-Gm-Message-State: APt69E0tZe0IiT+qjMc/aw/iS7Qd/XhuLfShENdYZw5g1PStJrfW80Zj UlyGrZ6/QphciCuvSRzC/s237TYWxdkGkJNK+kHU X-Google-Smtp-Source: ADUXVKLGTYPXZFp/TutM7YiabmkKcuM53qteYM7b2ofZVALet2QSdAoRdf1yxdkQAmHYaUCenkfQPLDhI+9X7/7cOd8= X-Received: by 2002:a50:a6d5:: with SMTP id f21-v6mr461276edc.2.1528939800196; Wed, 13 Jun 2018 18:30:00 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a50:f5ef:0:0:0:0:0 with HTTP; Wed, 13 Jun 2018 18:29:59 -0700 (PDT) In-Reply-To: References: Date: Wed, 13 Jun 2018 18:29:59 -0700 Message-ID: Subject: Re: [FlyRotary] alternator To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="000000000000ac7a3d056e90093c" --000000000000ac7a3d056e90093c Content-Type: text/plain; charset="UTF-8" Hi Neil; First, my apologies for not answering your earlier question sooner, but it's been a busy week. I'm not certain which dimension that you were looking for, but with it in place it is difficult to measure anything but the rotor cup. Those measurements are 6.3" OD on the cup and after I machined a little off the face edge of the cup I was left with 1.35" thickness. Looking back at my report it looks like I had to remove a total of about 0.156 off both sides of the cup to make it fit so it was probably about 1.5" thick originally. At the time I did this I had detailed notes on every possible dimension, but that was some years back. Not knowing enough about your PSRU, I can't say for certain which would be a good fit, but from what I can see of the Racemate, while it is a good solution for the purpose in which it was intended as a belt driven waterpump alt, I think if I was to do it again, I would not hesitate to use the Harley style again, rather than pay extra to modify something that is well designed for the other end of the engine. But I would not buy it from the local Harley shop ever again as I paid far too much for it. I would use the Compufire #55540 kit with rotor, stator & regulator which can be bought at Amazon.com right now for $197.64 usd. https://www.amazon.com/Compu-Fire-32-amp-Charging-System-55540/product-reviews/B000GUWM5K This would be your most cost effective way to add it in and apparently Compufire is manufactured in the USA. (for those worried that it is a cheap Chinese knock-off) As far as machining costs, once again I do not know the details of your design, but with mine the greatest difficulty was in doing it as a one off design. But if I was to have been doing a bunch of them, I don't think the additional machining would be too onerous, but would not be able to put a dollar amount on that work. And of course, outside of machining and parts costs, you've got to cut yourself a little something as profit for this venture. Now with that said, to answer your current question if we think it would be worth it, I would say yes. I've been doing a fair bit of ground testing for unrelated issues but as I disconnected my main alternator in order to access oil lines, I've been running on the back-up PM alt only and it is working flawlessly. Even with both working I can switch seamlessly from the main to the back-up with only a slight volt drop of 0.4 due to different voltage regulators. It seems like a lot of money, but in my opinion it is better money spent than on a back-up lightweight battery. Of course I won't be a customer since I already have it and my opinion is biased, but while I could list more than a handful of things that I wouldn't do again, this isn't one of them. I would do it again in a heartbeat. Todd Todd Bartrim On Wed, Jun 13, 2018 at 4:42 PM, Neil Unger 12348ung@gmail.com < flyrotary@lancaironline.net> wrote: > Group, > > Have done some investigation into mounting another > generator on the cushion drive and I think it is possible if I use the > Racemate rather than the harley. Cost appears to be similar but the > dimensions of the Racement seem more adaptable. I will have to alter the > cushion drive to fit, but that is simply an annoyance at this stage. > Guessing the cost involved it looks like $350 for the generator and > regulator, plus possibly an additional $200 for machining making an > additional $550 USD for the generator. > > IS this cost effective?? You only can answer this for me. The generator > puts out 35 amps. > > What say you all? > > Regards. Neil > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline. > net:81/lists/flyrotary/List.html > --000000000000ac7a3d056e90093c Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Neil;
=C2=A0 First, my apologies for not answering = your earlier question sooner, but it's been a busy week.
I= 9;m not certain which dimension that you were looking for, but with it in p= lace it is difficult to measure anything but the rotor cup.
Those= measurements are 6.3" OD on the cup and after I machined a little off= the face edge of the cup I was left with 1.35" thickness. Looking bac= k at my report it looks like I had to remove a total of about 0.156 off bot= h sides of the cup to make it fit so it was probably about 1.5" thick = originally. At the time I did this I had detailed notes on every possible d= imension, but that was some years back.
=C2=A0 =C2=A0Not knowing = enough about your PSRU, I can't say for certain which would be a good f= it, but from what I can see of the Racemate, while it is a good solution fo= r the purpose in which it was intended as a belt driven waterpump alt, I th= ink if I was to do it again, I would not hesitate to use the Harley style a= gain, rather than pay extra to modify something that is well designed for t= he other end of the engine.
=C2=A0 But I would not buy it from th= e local Harley shop ever again as I paid far too much for it. I would use t= he Compufire #55540 kit with rotor, stator & regulator which can be bou= ght at Amazon.com right now for $197.64 usd.
This would be your most cost effective = way to add it in and apparently Compufire is manufactured in the USA. (for = those worried that it is a cheap Chinese knock-off)
=C2=A0 As far= as machining costs, once again I do not know the details of your design, b= ut with mine the greatest difficulty was in doing it as a one off design. B= ut if I was to have been doing a bunch of them, I don't think the addit= ional machining would be too onerous, but would not be able to put a dollar= amount on that work. And of course, outside of machining and parts costs, = you've got to cut yourself a little something as profit for this ventur= e.
=C2=A0 Now with that said, to answer your current question if = we think it would be worth it, I would say yes. I've been doing a fair = bit of ground testing for unrelated issues but as I disconnected my main al= ternator in order to access oil lines, I've been running on the back-up= PM alt only and it is working flawlessly. Even with both working I can swi= tch seamlessly from the main to the back-up with only a slight volt drop of= 0.4 due to different voltage regulators.
=C2=A0 It seems like a = lot of money, but in my opinion it is better money spent than on a back-up = lightweight battery. Of course I won't be a customer since I already ha= ve it and my opinion is biased, but while I could list more than a handful = of things that I wouldn't do again, this isn't one of them.
=C2=A0 I would do it again in a heartbeat.

Todd=

Todd = Bartrim

On Wed, Jun 13, 2018 at 4:42 PM, Neil Unger = 12348ung@gmail.com <fl= yrotary@lancaironline.net> wrote:
Group,

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Have done some investig= ation into mounting another generator on the cushion drive and I think it i= s possible if I use the Racemate rather than the harley.=C2=A0 Cost appears= to be similar but the dimensions of the Racement seem more adaptable.=C2= =A0 I will have to alter the cushion drive to fit, but that is simply an an= noyance at this stage.=C2=A0 Guessing the cost involved it looks like $350 = for the generator and regulator, plus possibly an additional $200 for machi= ning making an additional $550 USD for the generator.

IS this cost effective??=C2=A0 You only can answer this for me.=C2=A0 The g= enerator puts out 35 amps.

What say you all?

Regards.=C2=A0 Neil

--
Homepage:=C2=A0 http://www.flyrotary.com/
Archive and UnSub:=C2=A0 =C2=A0http://mail= .lancaironline.net:81/lists/flyrotary/List.html

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